It’s clear that companies are currently unable to make chatbots like ChatGPT comply with EU law, when processing data about individuals. If a system cannot produce accurate and transparent results, it cannot be used to generate data about individuals. The technology has to follow the legal requirements, not the other way around.
If an LLM had to say “I don’t know” when it doesn’t know, that’s all it would be allowed to say! They literally don’t know anything. They don’t even know what knowing means. They are complex (and impressive, admittedly) text generators.